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Finding the Fourth Proportional to 313,337.64, 432,461.16 and 177,379.32

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Solution

The fourth proportional to 313,337.64, 432,461.16 and 177,379.32 is: 244,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,337.64 : 432,461.16 = 177,379.32 : x
  2. Step 2: Convert to fraction form
    313,337.64/432,461.16 = 177,379.32/x
  3. Step 3: Cross multiply
    313,337.64x = 432,461.16 × 177,379.32
  4. Step 4: Simplify right side
    313,337.64x = 76,709,666,487.21
  5. Step 5: Solve for x
    x = 76,709,666,487.21/313,337.64
  6. Step 6: Final answer
    x = 244,814.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.